diff --git a/transport/sql/common.py b/transport/sql/common.py
index 33c5d89..a75cd1e 100644
--- a/transport/sql/common.py
+++ b/transport/sql/common.py
@@ -158,4 +158,3 @@ class BaseWriter (SQLBase):
         if self._schema :
            _mode['schema'] = self._schema
         _df.to_sql(_table,self._engine,**_mode)    
-        _df.to_sql(_table,self._engine,**_mode)